The invention relates to a high-voltage power distribution circuit supporting series charging and parallel discharging, and relates to the field of high-voltage power distribution of new energy vehicles. According to the invention, when the charging voltage meets the requirement of series charging, the series-parallel switching module switches the first battery and the second battery to be in a series state for series high-voltage charging, so that charging is carried out with higher charging efficiency; and the first direct-current voltage converter converts the charging high voltage during series charging into the voltage meeting the working requirement of the vehicle so as to support the normal working of the vehicle during charging. When the charging voltage does not meet the series charging requirement, the first battery and the second battery are switched to be in a parallel state through the series-parallel switching module to perform parallel low-voltage charging, and the first direct-current voltage converter does not perform voltage conversion on the switchable circuit, so that the vehicle can normally work during charging. According to the invention, serial-parallel charging switching is realized according to the charging condition, the charging efficiency is improved, and the vehicle electric appliance is supported to be used in serial and parallel charging states.
本发明涉及的一种支持串充并放的高压配电电路,涉及新能源车高压配电领域。本发明支持在充电电压满足串联充电要求是时,通过串并联切换模块切换第一电池和第二电池为串联状态进行串联高压充电,以更高的充电效率进行充电,且第一直流电压转换器将串联充电时的充电高压转换为满足车辆工作需求的电压,以支持车辆在充电时正常工作。本发明支持在充电电压不满足串联充电要求是时,通过串并联切换模块切换第一电池和第二电池为并联状态进行并联低压充电,且第一直流电压转换器不进行电压转换的可切换电路工作,以支持车辆在充电时正常工作。本发明根据充电条件实现串并充电切换提升充电效率的同时,支持在串并两个充电状态下使用车辆电器。
High-voltage power distribution circuit supporting serial charging and parallel discharging
一种支持串充并放的高压配电电路
03.11.2023
Patent
Elektronische Ressource
Chinesisch
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